<!doctype html>
<html>
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no"/>
    <title>HTML5 websocket 网页聊天室 javascript php</title>
    <style type="text/css">
        body,p{margin:0px; padding:0px; font-size:14px; color:#333; font-family:Arial, Helvetica, sans-serif;}
        #ltian,.rin{width:98%; margin:5px auto;}
        #ltian{border:1px #ccc solid;overflow-y:auto; overflow-x:hidden; position:relative;}
        #ct{margin-right:111px; height:100%;overflow-y:auto;overflow-x: hidden;}
        #us{width:110px; overflow-y:auto; overflow-x:hidden; float:right; border-left:1px #ccc solid; height:100%; background-color:#F1F1F1;}
        #us p{padding:3px 5px; color:#08C; line-height:20px; height:20px; cursor:pointer; overflow:hidden; white-space:nowrap; text-overflow:ellipsis;}
        #us p:hover,#us p:active,#us p.ck{background-color:#069; color:#FFF;}
        #us p.my:hover,#us p.my:active,#us p.my{color:#333;background-color:transparent;}
        button{float:right; width:80px; height:35px; font-size:18px;}
        input{width:100%; height:30px; padding:2px; line-height:20px; outline:none; border:solid 1px #CCC;}
        .rin p{margin-right:160px;}
        .rin span{float:right; padding:6px 5px 0px 5px; position:relative;}
        .rin span img{margin:0px 3px; cursor:pointer;}
        .rin span form{position:absolute; width:25px; height:25px; overflow:hidden; opacity:0; top:5px; right:5px;}
        .rin span input{width:180px; height:25px; margin-left:-160px; cursor:pointer}

        #ct p{padding:5px; line-height:20px;}
        #ct a{color:#069; cursor:pointer;}
        #ct span{color:#999; margin-right:10px;}
        .c2{color:#999;}
        .c3{background-color:#DBE9EC; padding:5px;}
        .qp{position:absolute; font-size:12px; color:#666; top:5px; right:130px; text-decoration:none; color:#069;}
        #ems{position:absolute; z-index:5; display:none; top:0px; left:0px; max-width:230px; background-color:#F1F1F1; border:solid 1px #CCC; padding:5px;}
        #ems img{width:44px; height:44px; border:solid 1px #FFF; cursor:pointer;}
        #ems img:hover,#ems img:active{border-color:#A4B7E3;}
        #ems a{color:#069; border-radius:2px; display:inline-block; margin:2px 5px; padding:1px 8px; text-decoration:none; background-color:#D5DFFD;}
        #ems a:hover,#ems a:active,#ems a.ck{color:#FFF; background-color:#069;}
        .tc{text-align:center; margin-top:5px;}
    </style>
</head>

<body>
<div id="ltian">
    <div id="us" class="jb"></div>
    <div id="ct"></div>
    <a href="javascript:;" class="qp" onClick="this.parentNode.children[1].innerHTML=''">清屏</a>
</div>
<div class="rin">
    <button id="sd">发送</button>
    <span><img src="http://www.yxsss.com/ui/sk/t.png" title="表情" id="imgbq"><img src="http://www.yxsss.com/ui/sk/e.png" title="上传图片"><form><input type="file" title="上传图片" id="upimg"></form></span>
    <p><input id="nrong"></p>
</div>
<div id="ems"><p></p><p class="tc"></p></div>
<script>
    if(typeof(WebSocket)=='undefined'){
        alert('你的浏览器不支持 WebSocket ，推荐使用Google Chrome 或者 Mozilla Firefox');
    }
</script>
<script src="http://www.yxsss.com/ui/p/a.js" type="text/javascript"></script>
<script>
    (function(){
        var key='all',mkey;
        var users={};
        var url='ws://127.0.0.1:8000';
        var so=false,n=false;
        var lus=A.$('us'),lct=A.$('ct');
        function st(){
            n=prompt('请给自己取一个响亮的名字：');
            n=n.substr(0,16);
            if(!n){
                return ;
            }
            //创建socket，注意URL的格式：ws://ip:端口
            so=new WebSocket(url);
            //握手监听函数
            so.onopen=function(){
                //状态为1证明握手成功，然后把client自定义的名字发送过去
                if(so.readyState==1){
                    so.send('type=add&ming='+n);
                }
            }

            //握手失败或者其他原因连接socket失败，则清除so对象并做相应提示操作
            so.onclose=function(){
                so=false;
                lct.appendChild(A.$$('<p class="c2">退出聊天室</p>'));
            }

            //数据接收监听，接收服务器推送过来的信息，返回的数据给msg，然后进行显示
            so.onmessage=function(msg){
                eval('var da='+msg.data);
                var obj=false,c=false;
                if(da.type=='add'){
                    var obj=A.$$('<p>'+da.name+'</p>');
                    lus.appendChild(obj);
                    cuser(obj,da.code);
                    obj=A.$$('<p><span>['+da.time+']</span>欢迎<a>'+da.name+'</a>加入</p>');
                    c=da.code;
                }else if(da.type=='madd'){
                    mkey=da.code;
                    da.users.unshift({'code':'all','name':'大家'});
                    for(var i=0;i<da.users.length;i++){
                        var obj=A.$$('<p>'+da.users[i].name+'</p>');
                        lus.appendChild(obj);
                        if(mkey!=da.users[i].code){
                            cuser(obj,da.users[i].code);
                        }else{
                            obj.className='my';
                            document.title=da.users[i].name;
                        }
                    }
                    obj=A.$$('<p><span>['+da.time+']</span>欢迎'+da.name+'加入</p>');
                    users.all.className='ck';
                }

                if(obj==false){
                    if(da.type=='rmove'){
                        var obj=A.$$('<p class="c2"><span>['+da.time+']</span>'+users[da.nrong].innerHTML+'退出聊天室</p>');
                        lct.appendChild(obj);
                        users[da.nrong].del();
                        delete users[da.nrong];
                    }else{
                        da.nrong=da.nrong.replace(/{\\(\d+)}/g,function(a,b){
                            return '<img src="sk/'+b+'.gif">';
                        }).replace(/^data\:image\/png;base64\,.{50,}$/i,function(a){
                            return '<img src="'+a+'">';
                        });
                        //da.code 发信息人的code
                        if(da.code1==mkey){
                            obj=A.$$('<p class="c3"><span>['+da.time+']</span><a>'+users[da.code].innerHTML+'</a>对我说：'+da.nrong+'</p>');
                            c=da.code;
                        }else if(da.code==mkey){
                            if(da.code1!='all')
                                obj=A.$$('<p class="c3"><span>['+da.time+']</span>我对<a>'+users[da.code1].innerHTML+'</a>说：'+da.nrong+'</p>');
                            else
                                obj=A.$$('<p><span>['+da.time+']</span>我对<a>'+users[da.code1].innerHTML+'</a>说：'+da.nrong+'</p>');
                            c=da.code1;
                        }else if(da.code==false){
                            obj=A.$$('<p><span>['+da.time+']</span>'+da.nrong+'</p>');
                        }else if(da.code1){
                            obj=A.$$('<p><span>['+da.time+']</span><a>'+users[da.code].innerHTML+'</a>对'+users[da.code1].innerHTML+'说：'+da.nrong+'</p>');
                            c=da.code;
                        }
                    }
                }
                if(c){
                    obj.children[1].onclick=function(){
                        users[c].onclick();
                    }
                }
                lct.appendChild(obj);
                lct.scrollTop=Math.max(0,lct.scrollHeight-lct.offsetHeight);

            }
        }
        A.$('sd').onclick=function(){
            if(!so){
                return st();
            }
            var da=A.$('nrong').value.trim();
            if(da==''){
                alert('内容不能为空');
                return false;
            }
            A.$('nrong').value='';
            so.send('nr='+esc(da)+'&key='+key);
        }
        A.$('nrong').onkeydown=function(e){
            var e=e||event;
            if(e.keyCode==13){
                A.$('sd').onclick();
            }
        }
        function esc(da){
            da=da.replace(/</g,'<').replace(/>/g,'>').replace(/\"/g,'"');
            return encodeURIComponent(da);
        }
        function cuser(t,code){
            users[code]=t;
            t.onclick=function(){
                t.parentNode.children.rcss('ck','');
                t.rcss('','ck');
                key=code;
            }
        }
        A.$('ltian').style.height=(document.documentElement.clientHeight - 70)+'px';
        st();


        var bq=A.$('imgbq'),ems=A.$('ems');
        var l=80,r=4,c=5,s=0,p=Math.ceil(l/(r*c));
        var pt='sk/';
        bq.onclick=function(e){
            var e=e||event;
            if(!so){
                return st();
            }
            ems.style.display='block';
            document.onclick=function(){
                gb();
            }
            ct();
            try{e.stopPropagation();}catch(o){}
        }

        for(var i=0;i<p;i++){
            var a=A.$$('<a href="javascript:;">'+(i+1)+'</a>');
            ems.children[1].appendChild(a);
            ef(a,i);
        }
        ems.children[1].children[0].className='ck';

        function ct(){
            var wz=bq.weiz();
            with(ems.style){
                top=wz.y-242+'px';
                left=wz.x+bq.offsetWidth-235+'px';
            }
        }

        function ef(t,i){
            t.onclick=function(e){
                var e=e||event;
                s=i*r*c;
                ems.children[0].innerHTML='';
                hh();
                this.parentNode.children.rcss('ck','');
                this.rcss('','ck');
                try{e.stopPropagation();}catch(o){}
            }
        }

        function hh(){
            var z=Math.min(l,s+r*c);
            for(var i=s;i<z;i++){
                var a=A.$$('<img src="'+pt+i+'.gif">');
                hh1(a,i);
                ems.children[0].appendChild(a);
            }
            ct();
        }

        function hh1(t,i){
            t.onclick=function(e){
                var e=e||event;
                A.$('nrong').value+='{\\'+i+'}';
                if(!e.ctrlKey){
                    gb();
                }
                try{e.stopPropagation();}catch(o){}
            }
        }

        function gb(){
            ems.style.display='';
            A.$('nrong').focus();
            document.onclick='';
        }
        hh();
        A.on(window,'resize',function(){
            A.$('ltian').style.height=(document.documentElement.clientHeight - 70)+'px';
            ct();
        })

        var fimg=A.$('upimg');
        var img=new Image();
        var dw=400,dh=300;
        A.on(fimg,'change',function(ev){
            if(!so){
                st();
                return false;
            }
            if(key=='all'){
                alert('由于资源限制 发图只能私聊');
                return false;
            }
            var f=ev.target.files[0];
            if(f.type.match('image.*')){
                var r = new FileReader();
                r.onload = function(e){
                    img.setAttribute('src',e.target.result);
                };
                r.readAsDataURL(f);
            }
        });
        img.onload=function(){
            ih=img.height,iw=img.width;
            if(iw/ih > dw/dh && iw > dw){
                ih=ih/iw*dw;
                iw=dw;
            }else if(ih > dh){
                iw=iw/ih*dh;
                ih=dh;
            }
            var rc = A.$$('canvas');
            var ct = rc.getContext('2d');
            rc.width=iw;
            rc.height=ih;
            ct.drawImage(img,0,0,iw,ih);
            var da=rc.toDataURL();
            so.send('nr='+esc(da)+'&key='+key);
        }

    })();
</script>
</body>
</html>
